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Abstract #3000

Low-Magnitude Hits Matter: Single-Season Longitudinal DTI Study on Asymptomatic High School Football Players

Ikbeom Jang1, Taylor Lee2, Trey E. Shenk3, Victoria N. Poole4, Eric A. Nauman2,5,6, Larry J. Leverenz7, and Thomas M. Talavage1,5

1School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, United States, 2School of Mechanical Engineering, Purdue University, West Lafayette, IN, United States, 3Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA, United States, 4Institute for Aging Research Instructor in Medicine, Harvard Medical School, Boston, MA, United States, 5Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, United States, 6Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, United States, 7Department of Health and Kinesiology, Purdue University, West Lafayette, IN, United States

The potential consequences of repeated low-magnitude head acceleration events (HAEs) have been less frequently investigated compared to immense HAEs. Retrospective examination of diffusion-weighted-imaging data collected longitudinally from male high school athletes was used to examine the hypotheses that athletes who experience repetitive HAEs will exhibit greater changes in diffusivity than athletes who do not experience repetitive HAEs and that low-magnitude HAEs will affect the integrity of the white matter.

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